Taylor Swift is "cool", Ed Sheeran has revealed.

The Lego House singer, who is supporting Taylor on the US leg of her Red tour, admitted that he holds the US country superstar in high regard - because she writes all her own songs.

"I'm a fan of Taylor's, not just her work but her ethics and that she writes her hits herself and she's probably the only woman in her position in the industry who writes 100 per cent of her hits. It's a very cool thing," he told Billboard.

The pair previously collaborated on Everything Has Changed, which features on Taylor's new album Red.

"The song that ended up on her record was pretty much 100 per cent her idea in the first place. I did what I could to help, but she definitely knows what she's doing," he added.

Ed, who also co-wrote One Direction's hit Little Things, joked that he will be busy writing songs for his second album when he's on the road.

"I've got around 26 songs for the next record, and I've got another nine months on the road to keep writing as well, so the record's definitely on its way," he said.

"I can tell you it will probably come out in February 2014, and I'm gonna be recording and writing it over the whole Taylor tour. Most of the first record was written when I was 17, 18 at the time, and I'm 21 now.

"So I've definitely evolved in the way I write songs and the way I perform, the whole mindspace. So it's just going to be a little more developed, I think," he added.